The role of wind waves on the formation and development of Langmuir circulations in a shallow water region

Nobuhiro Matsunaga, Ken Ichi Uzaki

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    The secondary circulations in wind-driven currents are well known as the Langmuir circulation. The Langtnuir circulations in a shallow water region have been investigated experimentally in two cases where wind waves are fully developed and their generation is suppressed by adding surfactant into the working fluid. The results of flow visualization reveal that the Langmuir circulations can be formed independently of the development of wind waves, and that their final steady spacing does not depend on the parameters of wind waves or surface fluctuations but only on the mean water depth. However, the results of the flow visualization and the velocity measurements give the conclusion that the development of wind waves causes the Langmuir circulations to be more stable and stronger. These experimental results imply that they can be formed without the interaction between the wind-driven currents and wind waves.

    Original languageEnglish
    Title of host publicationProceedings of the 29th International Conference on Coastal Engineering 2004, ICCE 2004
    EditorsJane McKee Smith, Jane McKee Smith
    PublisherAmerican Society of Civil Engineers (ASCE)
    Pages542-554
    Number of pages13
    ISBN (Electronic)9789812562982, 9789812562982
    DOIs
    Publication statusPublished - Apr 1 2005
    Event29th International Conference on Coastal Engineering, ICCE 2004 - Lisbon, Portugal
    Duration: Sep 19 2004Sep 24 2004

    Publication series

    NameProceedings of the Coastal Engineering Conference
    Volume2005-January
    ISSN (Print)0161-3782

    Other

    Other29th International Conference on Coastal Engineering, ICCE 2004
    CountryPortugal
    CityLisbon
    Period9/19/049/24/04

    All Science Journal Classification (ASJC) codes

    • Civil and Structural Engineering
    • Ocean Engineering
    • Oceanography

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